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Fig. 2. (A) Amount of particles as fragments retained in a 0.05-mm sieve used for determining particulate organic C and N after wet sieving of whole-soil extracted with sodium hexametaphosphate (particles > 0.05 mm), and (B) concentration of particulate organic N in whole-soil from the 0- to 90-cm depth under rhizoma peanut and weeds. Bars followed by different letters are significantly different between peanut and weeds and between soil depths at P 
0.05 by the least square means test.
